92. In the lever of third order, load W, effort P and fulcrum F are oriented as follows about xx and yy axes, then M.I. of the lamina about axis zz, which is perpendicular to xx and yy, equal to
A.W between P and F
B.F between W and P
C.P between W and F
D.W, P and F all on one side

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93. The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of
A.Friction
B.Limiting friction
C.Repose
D.Kinematic friction

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94. In actual machines
A.Mechanical advantage is greater than velocity ratio
B.Mechanical advantage is equal to velocity ratio
C.Mechanical advantage is less than velocity ratio
D.Mechanical advantage is unity

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95. In ideal machines
A.Mechanical advantage is greater than velocity ratio
B.Mechanical advantage is equal to velocity ratio
C.Mechanical advantage is less than velocity ratio
D.Mechanical advantage is unity

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96. The velocity ratio in case of an inclined plane inclined at angle θ to horizontal and weight being pulled up the inclined plane by verticle effort is
A.Sinθ
B.1/ sinθ
C.1/ cosθ
D.Tanθ

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97. When P is the effort and W is the load then linear law of machines is given by the relation
A.W = mP + C
B.W = mP - C
C.P = mW - C
D.P = mW + c

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98. In a simple screw Jack the pitch of the screw is 9 mm and the length of the handle operating the screw is 45 cm, then the velocity ratio of system will be
A.5
B.157
C.314
D.15.7

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